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std::span::empty(3)	      C++ Standard Libary	   std::span::empty(3)

NAME
       std::span::empty	- std::span::empty

Synopsis
	  [[nodiscard]]	constexpr bool empty() const noexcept;

	  Checks if the	span is	empty.

Parameters
	  (none)

Return value
	  true if the span is empty (i.e., size() == 0); false otherwise.

Example
       // Run this code

	#include <span>
	#include <iostream>
	#include <iomanip>

	int main()
	{
	    std::span<const char> span{	"ABCDEF" };

	    while (!span.empty()) {
		std::cout << std::quoted(span.data()) << '\n';
		span = span.last(span.size() - 1);
	    }
	}

Output:
	"ABCDEF"
	"BCDEF"
	"CDEF"
	"DEF"
	"EF"
	"F"
	""

See also
	  size returns the number of elements in the sequence
	       (public member function)

http://cppreference.com		  2022.07.31		   std::span::empty(3)

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<https://man.freebsd.org/cgi/man.cgi?query=std::span::empty&sektion=3&manpath=FreeBSD+Ports+15.0>

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